Muffler delete question
#1
Muffler delete question
So, after some thought I'd like to do a muffler delete (much like the Mina Gallery set up) but I am not wanting to spend that much money, so I am just going to remove the mufflers and replace with some straight pipe, I am curious though will this create any back pressure issues?
Also, to confirm the exhaust pipe on the xj8 is 2.25 inches?
Thanks
Also, to confirm the exhaust pipe on the xj8 is 2.25 inches?
Thanks
#2
Join Date: Feb 2013
Location: Trying to escape Central Florida
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#3
#4
Depends what kind of sound you want - there is a danger of cabin boom.
I'd not bother with the X pipe, OK on a GT/Sports car but on a saloon? This part is resonated and keeps the cabin quiet and cordial - The 2 before the axle are likely candidates, as are the last ones after the axle under the rear bumper.
My car had a Paramount system that's done away with the pre axle mufflers.
I'd not bother with the X pipe, OK on a GT/Sports car but on a saloon? This part is resonated and keeps the cabin quiet and cordial - The 2 before the axle are likely candidates, as are the last ones after the axle under the rear bumper.
My car had a Paramount system that's done away with the pre axle mufflers.
#5
Depends what kind of sound you want - there is a danger of cabin boom.
I'd not bother with the X pipe, OK on a GT/Sports car but on a saloon? This part is resonated and keeps the cabin quiet and cordial - The 2 before the axle are likely candidates, as are the last ones after the axle under the rear bumper.
My car had a Paramount system that's done away with the pre axle mufflers.
I'd not bother with the X pipe, OK on a GT/Sports car but on a saloon? This part is resonated and keeps the cabin quiet and cordial - The 2 before the axle are likely candidates, as are the last ones after the axle under the rear bumper.
My car had a Paramount system that's done away with the pre axle mufflers.
#6
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thelegend0210 (04-29-2024)
#7
2002 XKR take off with rear mufflers removed - YouTube
Straight pipe rear mufflers with 2.25" like I did here and on about 4 other x308/x100s over the years. Just cut the straight muffler section after the rear most bend post axle and replace with 2.25", any body with a welder, sawzall, and a pulse can do it. I charge $80 for aluminized pipe and labor included using existing tips. Stainless pipe is a $130 soup to nuts. Sorry don't do premade kits
Straight pipe rear mufflers with 2.25" like I did here and on about 4 other x308/x100s over the years. Just cut the straight muffler section after the rear most bend post axle and replace with 2.25", any body with a welder, sawzall, and a pulse can do it. I charge $80 for aluminized pipe and labor included using existing tips. Stainless pipe is a $130 soup to nuts. Sorry don't do premade kits
Since you have done it the same way I am planning, what did you do about the exhaust hangers?
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#8
Install electric exhaust cut outs like I did, my threads are here with install pics if you search.
Complete flexibility to go from quiet to loud and everything in between, cost is modest too.
Back pressure? Loss of torque? A little, maybe, but these mods are about fun not power in my opinion.
Vector
Complete flexibility to go from quiet to loud and everything in between, cost is modest too.
Back pressure? Loss of torque? A little, maybe, but these mods are about fun not power in my opinion.
Vector
#9
Install electric exhaust cut outs like I did, my threads are here with install pics if you search.
Complete flexibility to go from quiet to loud and everything in between, cost is modest too.
Back pressure? Loss of torque? A little, maybe, but these mods are about fun not power in my opinion.
Vector
Complete flexibility to go from quiet to loud and everything in between, cost is modest too.
Back pressure? Loss of torque? A little, maybe, but these mods are about fun not power in my opinion.
Vector
#10
#11
That's actually a really interesting set up, I may consider doing something like that.
Currently I am considering doing the muffler delete of the aft most mufflers before the rear bumper, and doing an X pipe where the resonator is after depending on the sound. The ram intake makes it sound much better (due to getting more air) but I want to show that power of this vehicle.
#12
She is garage kept and babied too, lol!
Vector
#13
#14
#15
I removed the rear mufflers on my car and did get cabin boom which I didn't like it was pretty annoying when at a constant speed. However I had a pair of resonators from a newish 5.0 Mustang just lying around so I welded them in and now I get minimal drone.
The car does sound good when I get on the gas and has a nice idle tone.
The car does sound good when I get on the gas and has a nice idle tone.
#16
#17
Hi all - I'm bumping this thread with my own experience for the benefit of future visitors, after coming across it while considering deleting the mufflers on my 2001 VDP.
I removed the rear mufflers easily just by loosening the clamp, grabbing the muffler, and shaking it back and forth until it came loose. No loss of power whatsoever (I drive hard).
I was surprised by how quiet the sound was after driving it for a few days, so I added exhaust tips to get the exhaust closer to the ground: Turbo Baffle Stainless Steel Exhaust Tip with Adjustable Tailpipe Inlet 1.5"-2.50" T-304 Stainless Steel 1.5-2.25" ID x 3.5" OD - they were easy to clamp on using just an 8mm wrench - this really made a difference, the sound is more growly but still so mild it's hard to hear much of the time.
No boom, no drone. And it can actually be seen from behind the car. It was fun and easy to do, I could easily reach the work from the ground without lifting the car, and it would be easy to undo as well. If you're thinking about doing this, go ahead and try it - you have nothing to lose.
Here's how it looks.
I removed the rear mufflers easily just by loosening the clamp, grabbing the muffler, and shaking it back and forth until it came loose. No loss of power whatsoever (I drive hard).
I was surprised by how quiet the sound was after driving it for a few days, so I added exhaust tips to get the exhaust closer to the ground: Turbo Baffle Stainless Steel Exhaust Tip with Adjustable Tailpipe Inlet 1.5"-2.50" T-304 Stainless Steel 1.5-2.25" ID x 3.5" OD - they were easy to clamp on using just an 8mm wrench - this really made a difference, the sound is more growly but still so mild it's hard to hear much of the time.
No boom, no drone. And it can actually be seen from behind the car. It was fun and easy to do, I could easily reach the work from the ground without lifting the car, and it would be easy to undo as well. If you're thinking about doing this, go ahead and try it - you have nothing to lose.
Here's how it looks.
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mh.anthony6 (04-02-2021)
#18
In my opinion, I'd pipe the tips back up to the cutouts. It just looks way off to me, seeing the back end like that - cutouts in the bumper cover completely void, and the tips tucked way under there.
Good to hear the sound update and lack of drone though. It's on my to-do list for summer this year, finally.
Good to hear the sound update and lack of drone though. It's on my to-do list for summer this year, finally.
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mh.anthony6 (04-02-2021)
#19
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#20
I installed electric cutouts just before the mid mufflers instead, offering the same kind of growl (bypassing the mid and end muffler, so a bit more than you have).
Retaining the look of the car, and being able to have the Vanden Plas silence at the push of a button.